Supported Nanosized α-FeOOH Improves Efficiency of Photoelectro-Fenton Process with Reaction-Controlled pH Adjustment for Sustainable Water Treatment
Joint Authors
Wang, Chuan
Huang, Jian
Sun, Zhimin
Liao, Yang
Liu, Hong
Source
International Journal of Photoenergy
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-11-01
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
The overall photoelectro-Fenton (PE-Fenton) process for water treatment with neutral initial pH includes three steps of pH reduction, PE-Fenton reaction, and pH elevation.
Reaction-controlled pH adjustment (RCpA), which utilizes the intrinsic electrochemical reactions instead of chemical addition, has been employed to lower the pH, maintain the lowered pH for the Fenton reaction, and recover the pH for final effluent discharge.
This study demonstrated that the overall efficiency of this sustainable PE-Fenton process was improved by rapidly recycling the iron substance.
Nanosized iron oxide was prepared and employed to ensure such rapid recycling.
SEM and XRD results showed that the as-prepared iron oxide was α-FeOOH with 20 nm in size.
The experimental results of dimethyl phthalate (DMP) degradation showed that diatomite-supported α-FeOOH (N-α-FeOOH/diatomite) could efficiently reduce the DMP concentration and total organic carbon.
Furthermore, compared with Fe3+, the N-α-FeOOH/diatomite saved 160 min for iron settlement at 20 mg L−1 DMP concentration.
Also, with the increment in the initial DMP concentration, extra energy consumed by the individual step of PE-Fenton reaction using the N-α-FeOOH/diatomite became negligible compared with that using free iron ions with the increment in the initial DMP concentration.
This development is expected to be a major step of the PE-Fenton process with RCpA towards actual water treatment.
American Psychological Association (APA)
Wang, Chuan& Liu, Hong& Sun, Zhimin& Huang, Jian& Liao, Yang. 2012. Supported Nanosized α-FeOOH Improves Efficiency of Photoelectro-Fenton Process with Reaction-Controlled pH Adjustment for Sustainable Water Treatment. International Journal of Photoenergy،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-490763
Modern Language Association (MLA)
Wang, Chuan…[et al.]. Supported Nanosized α-FeOOH Improves Efficiency of Photoelectro-Fenton Process with Reaction-Controlled pH Adjustment for Sustainable Water Treatment. International Journal of Photoenergy No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-490763
American Medical Association (AMA)
Wang, Chuan& Liu, Hong& Sun, Zhimin& Huang, Jian& Liao, Yang. Supported Nanosized α-FeOOH Improves Efficiency of Photoelectro-Fenton Process with Reaction-Controlled pH Adjustment for Sustainable Water Treatment. International Journal of Photoenergy. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-490763
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-490763